#include<stdio.h>
int main (){
    int a;
    float b;
    double c;
    char d;
    printf("the size of int is %d bytes\n",sizeof(a));
    printf("the size of float is %d bytes\n",sizeof(b));
    printf("the size of double is %d bytes\n",sizeof(c));
    printf("the size of char is %d byte\n",sizeof(d));
    return 0;
}